Major Roseate Tern breeding colonies in the Northeast and numbers of breeding pairs at each colony at 6-year intervals from 1988–2012.

Colony Site

Location

1988

1994

2000

2006

2012

Country I., NS1

45º 06’ N, 61º 33’ W

25

30

16

25

27

Grassy I., NS1

44º 24’ N, 62º 14’ W

0

63

0

0

0

The Brothers, NS1

43º 40’ N, 65º 49’ W

40

79

61

68

38

Petit Manan I, ME

44º 22’ N, 67º 52’ W

42

60

15

23

2

Eastern Egg Rock, NE

43º 52’ N, 69º 22’ W

5

63

165

113

71

Jenny I., ME

43º 46’ N, 69º 54’ W

0

15

0

14

11

Stratton I., ME

43º 31’ N, 70º 19’ W

8

3

104

84

51

Seavey/White Is., NH

42º 58’ N, 70º 37’ W

0

0

1

33

51

Monomoy Is., MA

41º 36’ N, 69º 59’ W

1

0

3

26

6

Plymouth Beach, MA

41º 58’ N, 70º 39’ W

6

22

0

0

0

Nauset New I., MA

41º 49’ N, 69º 56’ W

60

2

3

0

0

Other cold-water sites (n)

18 (8)

10 (6)

57 (11)

22 (8)

10 (7)

Cold-water total

187

347

425

408

267

No. of colonies

16

15

19

16

15

Bird I., MA

41º 40’ N, 70º 43’ W

1572

1238

1130

1111

814

Ram I., MA

41º 37’ N, 70º 48’ W

0

76

988

463

439

Penikese I, MA

41º 26’ N, 70º 52’ W

0

0

0

48

9

Falkner I., CT

41º 13’ N, 72º 39’ W

147

123

110

62

36

Great Gull I., NY

41º 12’ N, 72º 07’ W

1004

1138

1762

1227

1596

Cartwright Point, NY

41º 01’ N, 72º 06’ W

0

14

0

80

0

Warner’s I., NY

40º 51’ N, 72º 30’ W

0

53

9

0

0

Lane’s I., NY

40º 50’ N, 72º 31’ W

0

352

18

0

0

Cedar Beach, NY

40º 38’ N, 73º 20’ W

93

58

0

0

0

Other warm-water sites (n)

43 (5)

3 (2)

2 (1)

27 (2)

1 (1)

Warm-water total

2859

2738

4019

3018

2895

No. of colonies

9

10

7

8

6

Northeast total

3082

3085

4444

3426

3162

No. of colonies

25

25

26

24

21

The “cold-water” and “warm-water” regions are the areas north and east of Cape Cod and south and west of Cape Cod, respectively. Sources: Canadian Wildlife Service and Northeast Roseate Tern Recovery Team; data compiled by J. McKnight and C. Mostello.

1 Dates for Canadian sites are for 1987, 1995, 1999, 2007 and 2011 because surveys were conducted at 4-year intervals; the first entry for The Brothers is for 1991.